The Bases and cellar walls are mounted by a link from four workers: the machinist of the crane, the assembler of 4th category (zvenevogo), the assembler of 3rd category and the scaffold worker. The scaffold worker selects and stropuet blocks, checks reliability stropovki, submits signals to the machinist of the crane and watches block lifting. Two assemblers accept and establish blocks in design position.
The Assembly crane, depending on its type, can be in an operating time on brovke a foundation ditch. Then on zahvatke mount at first all base, and then blocks of walls of a cellar (fig. 134), or in a foundation ditch - the bases mount small sites, and cellar walls on these sites, erect ledges at once to full height as the assembly crane cannot again enter into a zone where blocks above ground level are already mounted.
a Fig. 134. The organisation of installation of the bases and walls of a cellar from blocks :
1 - majachnye blocks, 2 - prichalki, 3 - the assembly crane, 4 - the mounted site of walls, 5 - the laid base plates
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